I've been using the Phone Only profile when I go to bed. But I'm not hearing anything at all, it's acting like a mute profile. I missed a call last night and noticed it today. Before I was using the Vibrate Profile but that still woke me! Any ideas why this is happening?

When I check under Advanced options and select Phone Only profile, I looked under the Phone option and it is set to Tone. Both in and out of holster is set to Tone. The Do Not Disturb was set to Yes, not sure what that is for.